Syphilis is treated at most places where you already receive medical care: your primary care doctor’s office, community health centers, sexual health clinics, urgent care centers, and family planning clinics. Nearly half of people treated for sexually transmitted infections go to a private doctor’s office, making it the most common choice. Public STD clinics, though specifically designed for this purpose, account for a smaller share of visits but offer specialized expertise and often lower costs.
Types of Facilities That Treat Syphilis
You have several options, and the best one depends on your insurance status, budget, and how quickly you need care.
- Primary care doctors can order syphilis blood tests and administer the standard antibiotic injection. This is the most common route, especially if you have health insurance and an established relationship with a provider.
- Sexual health or STD clinics are staffed by providers who diagnose and treat STIs daily. They typically offer walk-in appointments, sliding-scale fees, and same-day testing. Many are run by local or county health departments.
- Community health centers (FQHCs) serve patients regardless of insurance status and charge based on income. They provide testing and treatment for syphilis alongside general medical care.
- Family planning clinics, including Planned Parenthood locations, routinely screen for and treat syphilis. Younger adults and people without insurance tend to use these clinics more frequently.
- Urgent care centers can order blood tests and may be able to provide treatment, though not all stock the specific antibiotic injection needed. Call ahead to confirm.
How to Find a Clinic Near You
The fastest way to locate a testing and treatment site is through the CDC’s online locator at gettested.cdc.gov. Enter your zip code and you’ll see nearby clinics with contact information, hours, and details on whether they accept walk-ins. Your state or county health department website is another reliable source, as most maintain directories of publicly funded STD clinics.
If you have insurance, your plan’s provider directory will show in-network doctors who can handle testing and treatment. For uninsured patients, federally qualified health centers (findable at findahealthcenter.hrsa.gov) offer care on a sliding fee scale.
What Happens at Your Appointment
Diagnosing syphilis requires a blood draw, not a swab. Two types of blood tests are used together: one detects a general immune response that signals active infection, and the other confirms the response is specifically caused by the syphilis bacterium. Both are necessary because the first type can occasionally produce false positives from other conditions, while the second type stays positive even after successful treatment and can’t distinguish a current infection from a past one. Results typically take a few days, though some clinics offer rapid testing.
If you have visible sores, a provider may also examine those and collect a sample for additional testing.
What Treatment Looks Like
Syphilis caught in its early stages (primary or secondary) is cured with a single antibiotic injection. That’s it. One shot at the clinic and you’re done with the treatment itself. The injection goes into the muscle, usually the buttock, and the appointment is short.
If the infection has been present for a longer period (latent syphilis), you’ll need three injections spaced one week apart. For more advanced cases affecting the brain or nervous system, treatment involves a longer course of intravenous antibiotics, which requires a hospital or infusion center.
If you’re allergic to penicillin, your provider will discuss alternative antibiotics. The most commonly used substitute is a two-week course of oral doxycycline, though penicillin remains the only recommended option during pregnancy. Pregnant patients with a penicillin allergy are typically referred for a desensitization process so they can still receive penicillin safely.
Follow-Up After Treatment
Treatment doesn’t end with the injection. You’ll need follow-up blood tests to confirm the infection is gone. For early syphilis, your antibody levels should drop to at least one-quarter of their pre-treatment level within six months. For later-stage infections, that decline may take 12 to 24 months. Your provider will schedule blood draws at regular intervals to track this progress.
If your levels don’t drop as expected, it could mean the treatment didn’t fully work or you were reinfected. In that case, a second round of weekly injections over three weeks is the standard approach.
Privacy and Reporting
Syphilis is a legally reportable infection in every U.S. state. When your test comes back positive, your healthcare provider is required by law to notify the local or state health department. This is a routine public health measure, not a criminal matter, and the information is kept confidential within the health department.
Health departments also run partner notification services. A trained specialist (called a disease intervention specialist) may contact you to ask about recent sexual partners. If you provide names, the health department reaches out to those partners without revealing your identity. This process is designed to help you avoid the difficult conversation of disclosure while still protecting the people you’ve been with. You are not required to provide partner information, but the service exists specifically to maintain your anonymity while notifying others of their potential exposure.
Some clinics, particularly public STD clinics, allow you to use a pseudonym or code number rather than your legal name. If privacy is a concern, ask about this when you call to schedule.
Syphilis Treatment During Pregnancy
Pregnant individuals face a particular urgency. Untreated syphilis passes to the fetus and the risk is highest during the primary and secondary stages of infection. Treatment before or at 24 weeks of pregnancy gives the best chance of preventing congenital syphilis. Even when diagnosed later, treatment should begin immediately, as delaying therapy is more dangerous than any timing concern.
Treatment is considered potentially inadequate if delivery happens within 30 days of receiving the injection, if clinical signs of infection are still present at delivery, or if antibody levels at delivery are four times higher than they were before treatment. For this reason, early prenatal screening and prompt treatment are critical.
Cost Without Insurance
At a public health department STD clinic, testing and treatment are often free or very low cost. Community health centers charge on a sliding scale based on your income, and some will treat you even with no ability to pay. Planned Parenthood locations also offer income-based pricing. If you go to a private doctor or urgent care without insurance, expect to pay for the office visit, blood work, and the antibiotic injection separately, which can add up to a few hundred dollars total. Calling ahead to ask about costs and payment options is always a good idea.